Home / 260,657,510,041.29-390,775,272,168.97-81,491,272,835.70

Finding the Fourth Proportional to 260,657,510,041.29, 390,775,272,168.97 and 81,491,272,835.70

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Solution

The fourth proportional to 260,657,510,041.29, 390,775,272,168.97 and 81,491,272,835.70 is: 122,170,944,994.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,657,510,041.29 : 390,775,272,168.97 = 81,491,272,835.70 : x
  2. Step 2: Convert to fraction form
    260,657,510,041.29/390,775,272,168.97 = 81,491,272,835.70/x
  3. Step 3: Cross multiply
    260,657,510,041.29x = 390,775,272,168.97 × 81,491,272,835.70
  4. Step 4: Simplify right side
    260,657,510,041.29x = 31,844,774,321,764,505,223,168
  5. Step 5: Solve for x
    x = 31,844,774,321,764,505,223,168/260,657,510,041.29
  6. Step 6: Final answer
    x = 122,170,944,994.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.